Hmmm. Let me see:
Not at all:
Half-Life (not counting BlueShift / CS)
Quake 2
Jagged Alliance 1/2
Starcraft
Final Fantasy series (except X)
Resident Evil series
Ninja Gaiden
Metroid series
Zelda series
Goldeneye/Perfect Dark (or any big N64 title for that matter, except Mario64 5 mins)
Splinter Cell series
GTA 3, GTA VC
Most PS2 platformers
Only 5 mins or so:
Doom 1/2
Quake 1
Metal Gear Solid series
KOTOR
2D/3D fighters
The Sims
Tomb Raider series
Ratchet & Clank
Rainbow Six games or many other "Tactical" shooters
All NES/SNES/Megadrive/PSX era games, except some of the most popular ones - I was too young and PC-only elitist bitch back then.
Yes, sometimes I'm ashamed of myself. Then I start to think about all the games I _have_ played, and the feeling goes away.